Question

How many chromosomes the primary protonema of funana will have, if its leaf has 5 chromosomes?

• A. 5 chromosomes
• B. 10 chromosomes
• C. 15 chromosomes
• D. 20 chromosomes

Answer 1

Answer:

A. 5 chromosomes

A protonema is a thread-like structure that forms when a moss plant germinates from a spore. It's the earliest stage of development of the gametophyte, the adult form of a moss plant. The protonema is made up of two types of cells: chloronemata and caulonemata. The number of chromosomes in an organism depends on whether it's a diploid or haploid cell. Diploid cells have two copies of chromosomes, while haploid cells have one.